scholarly journals Risk factors in bee and Vespula venom allergy: state of the art

Author(s):  
Johanna Stoevesandt ◽  
Axel Trautmann

Summary Background Correct recognition of risk factors enables individualized management and treatment of venom allergic patients. Methods Systematic research and review of current literature regarding the risk of (1) severe sting-induced anaphylaxis, (2) anaphylactic adverse event during venom immunotherapy (VIT), and (3) treatment failure. Results and discussion (1) Mastocytosis is the most important risk factor for severe sting-induced anaphylaxis. Hereditary α‑tryptasemia was recently identified as a genetic predictor of severe reactions. Older age is clearly associated with an increased risk; the respective impact of defined cardiovascular comorbidities has yet to be determined. Recent data do not support an aggravation of venom-induced anaphylaxis by intake of β‑blockers or angiotensin-converting enzyme (ACE) inhibitors. A higher risk in men can be attributed to more intensive exposure to stinging insects. (2) Anaphylactic side effects of VIT are most common during the buildup phase, particularly in the course of (ultra-)rush protocols involving a high number of injections and high cumulative daily doses. They are significantly more frequent during honeybee compared to Vespula VIT. Data supporting a negative effect of mastocytosis on the tolerability of VIT are scarce. Older age and cardiovascular medication are not associated with a higher incidence of VIT-induced anaphylaxis. (3) Relapsing anaphylactic reactions to both field and challenge stings are significantly more common during and after honeybee compared to Vespula VIT. Reports of severe field-sting reactions in mastocytosis patients suggest an increased risk of treatment failure which may be overcome by higher maintenance doses and longer duration of VIT.

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Christine Gilles ◽  
Maude Velghe-lenelle ◽  
Yannick Manigart ◽  
Déborah Konopnicki ◽  
Serge Rozenberg

Abstract Background This study compares the management and outcome of high grade squamous intraepithelial lesions (HSIL) in HIV-positive and -negative women and identifies risk factors for treatment failure. Methods This retrospective, controlled study includes 146 HIV-positive women, matched for HSIL, age and year of diagnosis, with 146 HIV-negative women. Differences were analysed using parametric and non-parametric tests and Kaplan–Meier survival curves. A binary logistic regression was used to assess risk factors for treatment failure. Results Persistence of cervical disease was observed most frequently in HIV-positive women (42 versus 17%) (p  <  0.001) and the cone biopsy margins were more often invaded in HIV-positive-women than in HIV-negative ones. (37 versus 16%; p  <  0.05). HIV-positive women, with successful cervical treatment had better HIV disease control: with significantly longer periods of undetectable HIV viral loads (VL) (19 versus 5 months; p  <  0.001) and higher CD4 counts (491 versus 320 cells/mm3; p  <  0.001). HIV-positive women with detectable VL at the time of dysplasia had 3.5 times (95% IC: 1.5–8.3) increased risk of treatment failure. Being treated through ablative therapy was associated with a 7.4, four-fold (95% IC: 3.2–17.3) increased risk of treatment failure compared to conization Conclusion HIV-positive women have a higher risk of treatment failure of HSIL than do HIV-negative women, especially when ablative therapy is used and in women with poor control of their HIV infection. The management and the follow- up of HSIL’s guidelines in this high-risk population should be adapted consequently: for HIV-positive women with uncontrolled viral load, excisional treatment should be the preferred therapy, whereas for women with undetectable viral load, CD4  +  lymphocytes higher than 500 cells/mm3 and with a desire of pregnancy, ablative therapy may be considered.


Author(s):  
Cok Istri Sri Dharma Astiti ◽  
A.A Sagung Sawitri ◽  
Tuti Parwati

Background and purpose: The incidence of first line ART failure is increasing in the South East Asia region. The main referral hospital in Bali has recorded an increased use of second line ART due to the first line ART failure. This study aims to explore risk factors associated to first line ART failure.Methods: A case control study was conducted among people living with HIV and AIDS at Sanglah Hospital Denpasar who started first line ART between 2004 and 2013. Cases were those who diagnosed as having clinical treatment failure and still on treatment in 2015. Controls were those with no treatment failure. Sex and year of ART initiation were matched between case and control. Data were obtained from medical records that include initial regiments, HIV mode of transmission, the WHO HIV clinical stage, CD4 count, opportunistic infections, body mass index, hemoglobin level, and drug substitution at the beginning and during treatment. Risk factors were analysed using logistic regression.Results: Out of 68 HIV/AIDS patients with clinical ART failure, 72.1% were confirmed with immunological and 36.8% were confirmed with virological failure. Median time before treatment failure was 3.5 years. Factors associated to ART failure were HIV clinical stage IV with (AOR=3.43; 95%CI=1.65-7.13) and being widow/widower (AOR=4.85; 95%CI=1.52-15.53). Patients with TB co-infection have a lower risk for treatment failure due to early diagnosis and treatment through TB-HIV program with (AOR=0.32; 95%CI=0.14-0.70).Conclusions: Higher HIV clinical stage at ART initiation increases the risk of treatment failure. HIV-TB co-infection indirectly reduces the risk of treatment failure.


2017 ◽  
Vol 176 (5) ◽  
pp. 591-602 ◽  
Author(s):  
Jinhao Liu ◽  
Wei Sun ◽  
Wenwu Dong ◽  
Zhihong Wang ◽  
Ping Zhang ◽  
...  

BackgroundPost-thyroidectomy haemorrhage is a rare but potentially life-threatening and unpredictable complication of thyroid surgery. In this study, we analysed the potential risk factors for the occurrence of post-thyroidectomy haemorrhage.MethodsThe PubMed and SCIE databases were comprehensively searched for studies published before June 30, 2016. Studies on patients who underwent an open thyroidectomy with or without neck dissection were included, and RevMan 5.3 software was used to analyse the data.ResultsTwenty-five studies and 424 563 patients were included in this meta-analysis, and post-thyroidectomy haemorrhage occurred in 6277 patients (incidence rate = 1.48%). The following variables were associated with an increased risk of post-thyroidectomy haemorrhage: older age (MD = 4.30, 95% CI = 3.09–5.52,P < 0.00001), male sex (OR = 1.73, 95% CI = 1.54–1.94,P < 0.00001), Graves’ disease (OR = 1.76, 95% CI = 1.44–2.15,P < 0.00001), antithrombotic agents use (OR = 1.96, 95% CI 1.55–2.49,P < 0.00001), bilateral operation (OR = 1.71, 95% CI = 1.50–1.96,P < 0.00001), neck dissection (OR = 1.53, 95% CI = 1.11–2.11,P = 0.01) and previous thyroid surgery (OR = 1.62, 95% CI = 1.12–2.34,P = 0.01). Malignant tumours (OR = 1.07, 95% CI = 0.89–1.28,P = 0.46) and drainage device use (OR = 1.27, 95% CI = 0.74–2.18,P = 0.4) were not associated with post-thyroidectomy haemorrhage.ConclusionOur systematic review identified a number of risk factors for post-thyroidectomy haemorrhage, including older age, male sex, Graves’ disease, antithrombotic agents use, bilateral operation, neck dissection and previous thyroid surgery. Early control of modifiable risk factors could improve patient outcomes and satisfaction.


2021 ◽  
pp. bjophthalmol-2021-319339
Author(s):  
Marco Pellegrini ◽  
Vincenzo Scorcia ◽  
Giuseppe Giannaccare ◽  
Andrea Lucisano ◽  
Sabrina Vaccaro ◽  
...  

BackgroundThe purpose of this study was to evaluate the incidence, timing and risk factors of corneal neovascularisation (NV) after deep anterior lamellar keratoplasty (DALK) for corneal ectasia.MethodsThis study included 616 eyes who underwent DALK between 2012 and 2020 in two tertiary referral centres. In one centre topical corticosteroids were discontinued after complete suture removal 1 year after surgery, whereas in the other they were discontinued 3–4 months after surgery. The presence and severity of corneal NV was ascertained based on slit lamp photographs. Potential risk factors for corneal NV were evaluated using the Cox proportional hazards model.ResultsThe cumulative incidence of corneal NV was 8.7% at 1 year after surgery and 13.2% at 5 years. Mean time interval from surgery to development of corneal NV was 12.8±16.2 months, with 68.9% of cases occurring before complete suture removal. Early discontinuation of topical steroids, older age and ocular allergy were associated with an increased risk of developing corneal NV (respectively, HR=2.625, HR=1.019, HR=3.726, all p<0.05).ConclusionsThe risk of corneal NV is higher in the first year following DALK. Early discontinuation of topical steroids, ocular allergy and older age are significant predictors of corneal NV.


Author(s):  
Ambarish Pandey ◽  
Benjamin Willis ◽  
David Leonard ◽  
Laura DeFina ◽  
Ang Gao ◽  
...  

Background: Low mid-life fitness is associated with increased risk for heart failure (HF) events decades later. However, the association between changes in mid-life fitness and heart failure risk has not been studied. Methods: We included 9050 subjects (15% Females, mean age 48 years) with no prior cardiovascular disease who underwent two cardiorespiratory fitness measurements approximately 8 years apart. Fitness was estimated in metabolic equivalents (METs) according to Balke treadmill time, with low fitness defined as the lowest quintile of fitness and high fitness defined as quintiles 2-5. Change in fitness was defined categorically according to fitness quintiles (see figure legend) and continuously as the change in METs between the two examinations. Baseline data from the CCLS were matched with Medicare administrative claims data from the Center for Medicare and Medicaid Services. Hospitalization for HF was determined from Medicare claims files. The association between change in fitness and HF hospitalization was assessed by applying a proportional hazard recurrent events model to the failure time data and adjusted for traditional risk factors. Results: After 60,635 person years of Medicare follow up, we observed 242 hospitalizations for HF. Compared to individuals with persistently low fitness levels in middle-age, individuals who increased their fitness levels had a lower rate of HF hospitalization (0.88 vs. 0.64%/year). After multivariable adjustment for baseline fitness level and other risk factors, each 1 MET increase in middle age fitness was associated with 5% less risk for HF hospitalization in later life [HR 0.95 (0.93-0.97) per MET]. Conclusion: Change in mid-life fitness is associated with HF risk in older age. These findings suggest that the heart failure risk related to low fitness may be modifiable with exercise training.


2018 ◽  
Vol 154 (1) ◽  
pp. S102
Author(s):  
Soumya Kurnool ◽  
Nghia H. Nguyen ◽  
James Proudfoot ◽  
Parambir S. Dulai ◽  
Brigid S. Boland ◽  
...  

AIDS ◽  
2008 ◽  
Vol 22 (17) ◽  
pp. 2381-2390 ◽  
Author(s):  
Joanne Reekie ◽  
Amanda Mocroft ◽  
Helen Sambatakou ◽  
Ladislav Machala ◽  
Antonio Chiesi ◽  
...  

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Ali S. Omrani ◽  
Muna A. Almaslamani ◽  
Joanne Daghfal ◽  
Rand A. Alattar ◽  
Mohamed Elgara ◽  
...  

Abstract Background There are limited data on Coronavirus Disease 2019 (COVID-19) outcomes at a national level, and none after 60 days of follow up. The aim of this study was to describe national, 60-day all-cause mortality associated with COVID-19, and to identify risk factors associated with admission to an intensive care unit (ICU). Methods This was a retrospective cohort study including the first consecutive 5000 patients with COVID-19 in Qatar who completed 60 days of follow up by June 17, 2020. The primary outcome was all-cause mortality at 60 days after COVID-19 diagnosis. In addition, we explored risk factors for admission to ICU. Results Included patients were diagnosed with COVID-19 between February 28 and April 17, 2020. The majority (4436, 88.7%) were males and the median age was 35 years [interquartile range (IQR) 28–43]. By 60 days after COVID-19 diagnosis, 14 patients (0.28%) had died, 10 (0.2%) were still in hospital, and two (0.04%) were still in ICU. Fatal COVID-19 cases had a median age of 59.5 years (IQR 55.8–68), and were mostly males (13, 92.9%). All included pregnant women (26, 0.5%), children (131, 2.6%), and healthcare workers (135, 2.7%) were alive and not hospitalized at the end of follow up. A total of 1424 patients (28.5%) required hospitalization, out of which 108 (7.6%) were admitted to ICU. Most frequent co-morbidities in hospitalized adults were diabetes (23.2%), and hypertension (20.7%). Multivariable logistic regression showed that older age [adjusted odds ratio (aOR) 1.041, 95% confidence interval (CI) 1.022–1.061 per year increase; P < 0.001], male sex (aOR 4.375, 95% CI 1.964–9.744; P < 0.001), diabetes (aOR 1.698, 95% CI 1.050–2.746; P 0.031), chronic kidney disease (aOR 3.590, 95% CI 1.596–8.079, P 0.002), and higher BMI (aOR 1.067, 95% CI 1.027–1.108 per unit increase; P 0.001), were all independently associated with increased risk of ICU admission. Conclusions In a relatively younger national cohort with a low co-morbidity burden, COVID-19 was associated with low all-cause mortality. Independent risk factors for ICU admission included older age, male sex, higher BMI, and co-existing diabetes or chronic kidney disease.


PLoS ONE ◽  
2015 ◽  
Vol 10 (3) ◽  
pp. e0121300 ◽  
Author(s):  
Sven-Erik Olofsson ◽  
Björn Nodin ◽  
Alexander Gaber ◽  
Jakob Eberhard ◽  
Mathias Uhlén ◽  
...  

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 8038-8038
Author(s):  
Amrita Y. Krishnan ◽  
Matthew Mei ◽  
Canlan Sun ◽  
Jennifer Berano-Teh ◽  
Stephen J. Forman ◽  
...  

8038 Background: Studies from the CALGB and IFM have suggested an increased incidence of SPM post ASCT in patients on lenalidomide maintenance. Patients with MM as well as patients post ASCT are inherently at higher risk of SPM. Therefore, assessment of risk factors associated with SPM would be useful in therapeutic decisions re preASCT therapy and post ASCTmaintenance. Methods: We conducted a retrospective cohort study of 841 consecutive MM patients who underwent at least one ASCT at City of Hope from 1989 to 2009. Sixty cases with 70 SPMs were identified. A nested case-control study was also conducted to understand the role of therapeutic exposures associated with SPMs. Controls were MM patients post ASCT matched by year of HCT (±5 years). Results: The median length of follow up was 3.3 yrs. (range 0.3-19.9). Median age at ASCT was 56 yrs (range 18-77). 62% had received a single autologous HCT, 27% tandem autologous HCT, 11% had received multiple HCTs (72 had a second allogeneic HCT)). The overall cumulative incidence of any SPM was 7.4% at 5 years and 15.9% at 10 years; the cumulative incidence of SPMs for patients >55 years approached 21.9% at 10 years. The cumulative incidence of MDS/AML was 1.8% and of solid tumors was 13.0%. Factors examined included age, race, sex, number and individual therapeutic exposures ( pre-ASCT, conditioning, and post-ASCT), disease status at ASCT. Multivariate Cox regression analysis revealed non-Hispanic whites (RR=2.4, 95% CI, 1.2-4.6, p=0.01) and older age (>55) at diagnosis of MM (RR=2.3, 95% CI, 1.3-4.1, p=0.004) to be associated with an increased risk of developing SPMs. Only cumulative thalidomide exposure (both pre-ASCT and post-ASCT) demonstrated a trend toward a positive association (OR=3.5, 95% CI, 0.6-19.4, p=0.15). Six patients (3 cases and 3 controls) were exposed to lenalidomide prior to development of SPM (OR=1.0, 95% CI, 0.14-7.10). Conclusions: This single institution analysis identified non-hispanic whites and older age to be associated with increased risk of developing SPM in pts post ASCT for MM. The trend towards increased risk with thalidomide exposure may be suggestive of a class effect from IMIDs that is not restricted to lenalidomide alone.


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